ODS Plugin about rows

[rossjones]

There's a pretty messy implementation at https://github.com/okfn/messytables/blob/master/messytables/ods.py that might help as a starting point. It does manage to process the ODS files in https://github.com/okfn/messytables/tree/master/horror so it does work to some extent (even large.ods which extracts to ~98Mb).

[turicas]

@rossjones, thanks! I'm thinking in not using regular expressions as they use for this implementations (actually they use lxml + regexps) since it can lead to some problems/more complexity (although it'd be probably faster).
I'll try to reuse "horror" files on some tests.

[randomstuff]

It might be useful to handle .lods as well (plain xml files without .zip archive).

[turicas]

@randomstuff, are .lods files equal to the content.xml inside the .zip archive?